One Direction certainly seemed to have that special je ne sais quoi, with the boys causing huge excitement during a visit to France on Valentine's Day.
The five-piece were in the country for a visit and popped by the Virgin Megastore on the Champs-Elysées to sign copies of their album Up All Night.
Hoards of excited fans queued up in the hope of meeting the boys, who have taken the world by storm. They were no doubt hoping for a little Valentine's peck on the cheek too...
Harry no doubt delighted fans after Tweeting to wish them a happy February 14 too, writing: “Happy Valentines Day!!! We couldn’t do this if it wasn’t for you…and we love you for that. Hope everyone has a lovely day! Oui Oui!’ [sic].
The guys recently caused hysteria in America, where they were supporting US group Big Time Rush, who tipped the group for “massive success” there.
And they didn’t just receive praise from fellow musicians; Harry Styles even managed to catch the eye of Terminator actor Arnold Schwarzenegger’s daughter Katherine.
Student and author Katherine, 22, was so impressed with 18-year-old Harry’s, ahem, talents, that she took to Twitter to give him the seal of approval.
“Just watched my first One Direction video w my cousin and @Harry_Styles is a cutie indeed [sic]!,” the brunette beauty wrote.
Katherine even managed to wrangle her way onto the Nickelodeon set while One Direction were filming scenes for the sitcom iCarly, where she got a peek of Harry and the boys up close.
Of course the boys have a huge following in the UK too, where girls often camp out overnight just in the hope of seeing the band.
In fact, you can get an idea of just how devoted One Direction’s fans are by checking out stv.tv’s video above of the boys’ visit to Glasgow in December.
IT'S GOTTA BE YOU: